Lighting fixture



FIG. 1 is a top plan view of a lighting fixture illustrating my new design;

FIG. 2 is bottom plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof; and,

FIG. 6 is a right side view thereof. 

The ornamental design for a lighting fixture, as described and shown. 